(19)

(11)

EP 0 460 092 A1

(12)

(43) Date of publication: 11.12.1991 Bulletin 1991/50 (21) Application number: 90904484.0 (22) Date of filing: 22.02.1990

(51) International Patent Classification (IPC):  H04L 9/ 32( . ) G06F 21/ 00( . ) G06F 21/ 22( . ) H04L 9/ 08( . ) G06F 12/ 14( . ) G06F 21/ 20( . ) H04L 9/ 06( . ) G06F 1/ 00( . ) (86) International application number: PCT/US1990/000901 (87) International publication number: WO 1990/010344 (07.09.1990 Gazette 1990/21)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 24.02.1989 US 19890314916 (71) Applicant: MIU Automation Corporation Santa Barbara, CA 93103 (US)	(72) Inventor: DYKE, John West Valley, UT 84120 (US) (74) Representative: Garratt, Peter Douglas  Mathys & Squire 100 Grays Inn Road London WC1X 8AL London WC1X 8AL (GB)